chittimwood

(noun) shrubby tree of the Pacific coast of the United States; yields cascara sagrada. Synonyms: cascara buckthorn, bearberry, bearwood, chittamwood, Rhamnus purshianus.

(noun) deciduous tree of southeastern United States and Mexico. Synonyms: false buckthorn, chittamwood, shittimwood, black haw, Bumelia lanuginosa.